UK Vintage Radio Repair and Restoration Discussion Forum - Vox guitar organ oscillator transistor replacement

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vampyretim

23rd Nov 2017 4:14 pm

Vox guitar organ oscillator transistor replacement

Hi,

I'm repairing a Vox guitar organ and have an open circuit transistor which is a U15703. I can't find anything online about this transistor, can anyone recommend a suitable replacement?

Many thanks.

mole42uk

23rd Nov 2017 5:11 pm

Re: Vox guitar organ oscillator transistor replacement

The VOX Continental organ used 2N3708 transistors in the tone generator. The Guitorgan is similar.

k_yller

23rd Nov 2017 6:51 pm

Re: Vox guitar organ oscillator transistor replacement

its a germanium PNP transistor
try to replace with AC128

Boater Sam

23rd Nov 2017 10:06 pm

Re: Vox guitar organ oscillator transistor replacement

See
http://www.logosfoundation.org/g_tex...itar-Organ.pdf

Been done before.

kevinaston1

24th Nov 2017 9:27 pm

Re: Vox guitar organ oscillator transistor replacement

I have a service manual for the VOX V251 organ guitar. PM me if you need a copy.

Kevin

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